The optical sabotages and the offers that raise optical illusions have been very used in artistic activity in many of its branches as painting, drawing, sculpture? but somehow, it becomes more complicated to find models in the branch of illustration. In spite of that, this doctoral thesis makes sure that using certain visual sabotages applied in the illustration branch, the expressivity of the illustration increases and gets enriched. Technological changes provide new ways of exhibition for illustration and bring about the development of some types of visual sabotages, for instance those which use the manipulation of the sunlight of an environment getting what might be called ? the failure of the senses?, to be precise in this case would be the sense of vision, favouring to widen this ?sense?, thanks to a proposal of particular illustration. On the other hand, the new possibilities of printing and digital production offer to us different alternatives for the presentation of the illustrations as well, and there is room enough for proposals ended between subtlety and camouflage. Using strategies of visual sabotage in illustration discipline opens up to us a range of possibilities for bringing about richer and opened offers. These offers make us to question about the reality of real and also the subjectivity of the images. There are very interesting resources as a narrative and formal level. The first unit content of this investigation deals with the Theoretical Framework and also includes the study of models and the review of certain concepts that have been indispensable for the development of this essay. These concepts and models studied here had been selected depending on the needs aroused along the development of the practices. It has constantly been feedback between the theoretical and practical part of this investigation. The first chapter of this unit content is called Visual Sabotage, where the concept of sabotage is defined and related with the concept of perception. In this point there have been checked works of key artists whom have sometime been used these concepts, such as Joseph Albers, Victor Vasarely, Duchamp, Escher. Checking these works has been useful to be able to understand several theoretical concepts related to colour, shape or movement. In the middle of this chapter, it is possible to find a paragraph dedicated to Camouflage, which have a proposal of some typologies and there also is a reflection about the different ways of getting smoothly coordinate those typologies. The next point, Other Camouflages, explains the proposal of camouflage as a strategy of visual sabotage in a general way, appears also some kind of camouflage cases reviewed due to the relationship between those cases and practical work developed during this investigation. Those are the circumstances of Makeup, a discipline used for hiding certain visual information in particular occasions; Low Contrast, a specific kind of camouflage that proves the ability of the recipient for paying attention or not to subtle visual stimulus, and finally Multiple Interpretations as ambiguous images where we can find two or more possible interpretations camouflaged looking at only one visual offer. The second chapter of this theoretical unit content takes Optical Illusions and Illustration as a name. First of all, the tasks of an illustrator nowadays are defined, afterwards it is done a review of possible applications of illustration at present; and there also is a reflection about which way the technological development offers new possibilities of production and exhibition for this discipline. Finally the optical illusions are related to the current illustration and there are shown a selection of a few of the existing works of illustrators whom work bringing together both things. The third chapter takes for name Reality and Technology, it has a reflection about how technology give us the possibility of working an ?artificial reality?, term that Krueger coined, to explain the capacity of technological resources for increasing our perceptive experiences. This point performs great importance in relation with the practices that appear in the practical unit content, because that technology has been used to carry out those practices. The fourth point takes Manipulation of Colour-Light as a name. Light and colour have been phenomena of importance for developing this thesis, by means of manipulation of light and colour it is possible to propose visual sabotages and to use them like a tool of manipulation of the reality perception. In this point an extensive reflection is formulated all over these topics; besides there are explanations and reviews of a couple of artists work: James Turrell, sculptor and Robert Wilson, set designer. Fifth and last point of this theoretical unit content deals with Synesthesical Perception, there is a definition of this different way of perception of the world that some people experience. Through some works by Karsten Nicolai, artist and musician, synesthesical perception is related in this investigation by means of specific tests. There have been four tests to put theoretical content into practice. Those tests configure the most important unit of this essay since this investigation has an experimental nature very strong. The first test is titled Camouflaged Characters and it has been raised from subtle as a concept to reach a proposal of visual camouflage. This proposal has got a series of illustrations hidden on the walls, expecting to be perceived only for those more observant eyes. Technically there has been done a study of the current possibilities of production inside of illustration branch, and it has been tested different materials and their application on illustrations made on two-dimensional surfaces of big/great format. At the second test performed, under the title StereoInterpretations, there has been exposed the concept of camouflage and the multiplicity of interpretations to generate movement. A technical study has been made with plastic materials to produce colour filters, moreover there has been a study to produce and optimize digital images to be viewed through those filters. Third test is named Theremin of Colour, it is the most complex practice at technical level. There have been related concepts as multiplicity of interpretations, camouflage and synesthesia to lay the theoretical foundations. The technical level of this practice presents the development of an interactive multimedia piece and the construction of an interface for intuitive interaction by means of an IR distance sensor, that is the reason because it is possible to find a detailed description of the accomplishment process. Last test included takes for title Landscape at Twice, its content review questions as generation of movement from the visual sabotage by means of illustrations made made-to-measure. Finally, we can find the Conclusions, where criteria are established and the different methods used to evaluate the obtained results are compared in a critical way, as the approach it starts as well as the reached success.